A “crack top” on a spillway crest creates a microscopic (or macroscopic) step. When high-velocity flow passes over this step, three critical things happen:
: This unique method allows for the accurate representation of complex solid geometries, like narrow cracks, within a regular Cartesian grid. It enables the software to calculate wall shear stresses even along surfaces that don't align with the mesh, which is essential for modeling flow through tight joints.
The use of FLOW-3D Hydro Crack Top offers several benefits to engineers and researchers, including:
Pre-Chorus Pixel rain, we swim in code, currents pull us nonstop, Under glass, under gloss, in the hush of the drop. Gravity’s a rumor, pressure’s where we shop, Push the seam, crack the top — watch the surface pop. flow 3d hydro crack top
Enable the Viscous Flow , Granular/Proppant Transport , and Deflectable Solid/FSI models.
Crucially for "crack top" analysis, the FDEM-flow3D model does not just simulate existing fractures. It can reproduce the within a crack, model the crack initiation and propagation , and account for fluid loss during the fracturing process [16†L6-L11][19†L19-L21]. This level of fidelity is essential for understanding how cracks begin at a structural surface and propagate through materials, posing a risk to structural integrity.
Using a simulation, engineers discovered: A “crack top” on a spillway crest creates
If you are setting up this simulation, follow these tips:
Utilities like BC Hydro use FLOW-3D to investigate complex hydraulic issues at existing dams and to assist in the design and optimization of new facilities [20†L23-L25]. Engineering firms like Hatch have used the software to identify the best approach for refurbishment, helping to reduce the risk of future erosion in the most efficient and cost-effective way possible [20†L6-L12]. In one case, a calibrated FLOW-3D HYDRO model was used to confirm that a design flood could pass safely through a spillway without overtopping its walls, providing deep insights into potential concrete damage in the process [3†L4-L6].
In the context of dams or spillways, analyzing "cracks" typically involves investigating how water pressure and flow interact with structural flaws. FLOW-3D HYDRO facilitates this through several key capabilities: DiVA portal Fluid-Structure Interaction (FSI): The use of FLOW-3D Hydro Crack Top offers
Analyzes how solid particles (proppants) are carried into the crack to keep it open.
Simulates high-velocity jets often found at the "top" of a vertical crack or plunging jet.
Pre-Chorus Pixel rain, we swim in code, currents pull us nonstop, Under glass, under gloss, in the hush of the drop. Gravity’s a rumor, pressure’s where we shop, Push the seam, crack the top — watch the surface pop.